<template>
  <div class="title">
    <span :class="{active:user.login_type === 0}" @click="user.login_type=0">密码登录</span>
    <span :class="{active:user.login_type === 1}" @click="user.login_type=1">短信登录</span>
  </div>
  <div class="inp" v-if="user.login_type === 0">
    <input v-model="user.account" type="text" placeholder="用户名 / 手机号码" class="user">
    <input v-model="user.password" type="password" class="pwd" placeholder="密码">
    <div id="geetest1"></div>
    <div class="rember">
      <label>
        <input type="checkbox" class="no" v-model="user.remember"/>
        <span>记住密码</span>
      </label>
      <p>忘记密码</p>
    </div>
    <button class="login_btn" @click="show_captcha">登录</button>
    <p class="go_login" >没有账号 <span><router-link to="/register">立即注册</router-link></span></p>
  </div>
  <div class="inp" v-show="user.login_type === 1">
    <input v-model="user.mobile" type="text" placeholder="手机号码" class="user">
    <input v-model="user.code"  type="text" class="code" placeholder="短信验证码">
    <el-button id="get_code" type="primary">获取验证码</el-button>
    <button class="login_btn">登录</button>
    <p class="go_login" >没有账号 <span><router-link to="/register">立即注册</router-link></span></p>
  </div>
</template>

<script setup>
import user from "../api/user";
import { ElMessage } from 'element-plus'
import {useStore} from "vuex";
import "../utils/TCaptcha";
import settings from "../settings";
const store = useStore()
const emit = defineEmits(["login_success",])

// 显示登录验证码
const show_captcha = ()=>{
  var captcha1 = new TencentCaptcha(settings.captcha_app_id, (res)=>{
      // 接收验证结果的回调函数
      /* res（验证成功） = {ret: 0, ticket: "String", randstr: "String"}
         res（客户端出现异常错误 仍返回可用票据） = {ret: 0, ticket: "String", randstr: "String", errorCode: Number, errorMessage: "String"}
         res（用户主动关闭验证码）= {ret: 2}
      */
      loginhandler(res);
  });
  captcha1.show(); // 显示验证码
}


// 登录处理
const loginhandler = (res)=>{
  if(user.account.length<1 || user.password.length<1){
    // 错误提示
    console.log("错了哦，用户名或密码不能为空！");
    ElMessage.error('错了哦，用户名或密码不能为空！');
    return false;  // 在函数/方法中，可以阻止代码继续往下执行
  }

  // 发送请求
  user.login({
    username: user.account,
    password: user.password,
    ticket: res.ticket,
    randstr: res.randstr,
  }).then(response=>{
    // 保存token，并根据用户的选择，是否记住密码
    localStorage.removeItem("token");
    sessionStorage.removeItem("token");

    if(user.remember){ // 判断是否记住登录状态
      // 记住登录
      localStorage.token = response.data.token
    }else{
      // 不记住登录，关闭浏览器以后就删除状态
      sessionStorage.token = response.data.token;
    }
    // 保存token，并根据用户的选择，是否记住密码
    // 成功提示
    ElMessage.success("登录成功！");
    console.log("登录成功！");
    // 关闭登录弹窗，对父级页面发送一个登录成功的信息
    user.account = ""
    user.password = ""
    user.mobile = ""
    user.code = ""
    user.remember = false
    // 全局通知，保存user用户信息到vuex
    let payload = response.data.token.split(".")[1]  // 载荷
    payload = JSON.parse(atob(payload)) // 提取用户信息
    store.commit("login", payload);
    emit("login_success")  // 通知父组件登录成功了
  }).catch(error=>{
    console.log(error);
  })
}

</script>

<style scoped>
.title{
	font-size: 20px;
	color: #9b9b9b;
	letter-spacing: .32px;
	border-bottom: 1px solid #e6e6e6;
  display: flex;
  justify-content: space-around;
  padding: 0px 60px 0 60px;
  margin-bottom: 20px;
  cursor: pointer;
}
.title span.active{
	color: #4a4a4a;
  border-bottom: 2px solid #84cc39;
}

.inp{
	width: 350px;
	margin: 0 auto;
}
.inp .code{
  width: 220px;
  margin-right: 16px;
}
#get_code{
 margin-top: 6px;
}
.inp input{
    outline: 0;
    width: 100%;
    height: 45px;
    border-radius: 4px;
    border: 1px solid #d9d9d9;
    text-indent: 20px;
    font-size: 14px;
    background: #fff !important;
}
.inp input.user{
    margin-bottom: 16px;
}
.inp .rember{
     display: flex;
    justify-content: space-between;
    align-items: center;
    position: relative;
    margin-top: 10px;
}
.inp .rember p:first-of-type{
    font-size: 12px;
    color: #4a4a4a;
    letter-spacing: .19px;
    margin-left: 22px;
    display: -ms-flexbox;
    display: flex;
    -ms-flex-align: center;
    align-items: center;
    /*position: relative;*/
}
.inp .rember p:nth-of-type(2){
    font-size: 14px;
    color: #9b9b9b;
    letter-spacing: .19px;
    cursor: pointer;
}

.inp .rember input{
    outline: 0;
    width: 30px;
    height: 45px;
    border-radius: 4px;
    border: 1px solid #d9d9d9;
    text-indent: 20px;
    font-size: 14px;
    background: #fff !important;
    vertical-align: middle;
    margin-right: 4px;
}

.inp .rember p span{
    display: inline-block;
  font-size: 12px;
  width: 100px;
}
.login_btn{
    cursor: pointer;
    width: 100%;
    height: 45px;
    background: #84cc39;
    border-radius: 5px;
    font-size: 16px;
    color: #fff;
    letter-spacing: .26px;
    margin-top: 30px;
    border: none;
    outline: none;
}
.inp .go_login{
    text-align: center;
    font-size: 14px;
    color: #9b9b9b;
    letter-spacing: .26px;
    padding-top: 20px;
}
.inp .go_login span{
    color: #84cc39;
    cursor: pointer;
}
</style>